Mai Tai

1.5 oz White Rum
1/2 oz Orange Liqueur (maybe: Pierre Ferrand Dry Curaçao Orange or Cointreau)
3/4 oz Lime Juice
1/2 oz Orgeat
1 cup crushed ice
Combine and Shake lightly (3 seconds) in Shaker

Rocks Glass
Pour shaker contents including crushed ice

1/2 oz Dark Rum
Float dark rum over the top

1 Lime wheel
1 Mint Sprig, Slapped
Garnish